[PATCH v5] conversion to blk-mq

From: Matias BjÃrling
Date: Mon Jun 02 2014 - 16:55:37 EST

Hi Matthew and Keith,

Here is an updated patch with the feedback from the previous days. It's against
Jens' for-3.16/core tree. You may use the nvmemq_wip_review branch at:

https://github.com/MatiasBjorling/linux-collab nvmemq_wip_review

and see the changes from v4 to v5 here:


Changes since v4:
* Fix timeout retries
* Fix naming in nvme_init_hctx
* Fix racy behavior of admin queue in nvme_dev_remove
* Fix wrong return values in nvme_queue_request
* Put cqe_seen back
* Introduce abort_completion for killing timed out I/Os
* Move locks outside of nvme_submit_iod
* Various renaming and style fixes

Changes since v3:
* Added abortion logic
* Fixed possible race on abortion
* Removed req data with flush. Handled by by blk-mq
* Added safety check for submitting user rq to admin queue.
* Use dev->online_queues for nr_hw_queues
* Fix loop with initialization in nvme_create_io_queues
* Style fixups

Changes since v2:
* rebased on top of current 3.16/core.
* use blk-mq queue management for spreading io queues
* removed rcu handling and allocated all io queues up front for mgmt by blk-mq
* removed the need for hotplugging notification
* fixed flush data handling
* fixed double free of spinlock
* various cleanup

Matias BjÃrling (1):
NVMe: conversion to blk-mq

drivers/block/nvme-core.c | 1149 ++++++++++++++++++---------------------------
drivers/block/nvme-scsi.c | 8 +-
include/linux/nvme.h | 14 +-
3 files changed, 478 insertions(+), 693 deletions(-)


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